EP1507982A1 - Heavy duty dowel - Google Patents

Heavy duty dowel

Info

Publication number
EP1507982A1
EP1507982A1 EP03735316A EP03735316A EP1507982A1 EP 1507982 A1 EP1507982 A1 EP 1507982A1 EP 03735316 A EP03735316 A EP 03735316A EP 03735316 A EP03735316 A EP 03735316A EP 1507982 A1 EP1507982 A1 EP 1507982A1
Authority
EP
European Patent Office
Prior art keywords
heavy
dowel
tube
duty
threaded rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03735316A
Other languages
German (de)
French (fr)
Other versions
EP1507982B1 (en
Inventor
Gerhard Heying
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heying Gerhard
Original Assignee
Heying Gerhard
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2002133287 external-priority patent/DE10233287A1/en
Application filed by Heying Gerhard filed Critical Heying Gerhard
Priority to SI200330187T priority Critical patent/SI1507982T1/en
Publication of EP1507982A1 publication Critical patent/EP1507982A1/en
Application granted granted Critical
Publication of EP1507982B1 publication Critical patent/EP1507982B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/01Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening elements specially adapted for honeycomb panels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/063Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
    • F16B13/066Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0069Specially shaped nuts or heads of bolts or screws for rotations by a tool with holes to be engaged with corresponding pins on the tool or protruding pins to be engaged with corresponding holes on the tool

Definitions

  • the invention relates to a heavy-duty dowel with a sleeve-shaped, axially penetrated by a threaded rod SI ⁇ belMech, frontally arranged with a in the area of the dowel point and expanding the dowel body, with the threaded rod connected spreader and with a part connected to the threaded rod abutment body, the is axially displaceable in the dowel body relative to the expansion body by turning the threaded rod.
  • the sleeve-shaped dowel body is composed of three segments made of sheet steel, which in turn are held together by tendons.
  • a conical expansion body is screwed in the area facing the dowel tip, which cooperates with an abutment body that is also conical.
  • the abutment body is essentially fixedly connected to the threaded rod during assembly of the heavy-duty dowel, so that when the threaded rod is rotated, there is a relative movement between the expansion body and the abutment body.
  • the thread of the threaded rod is a right-hand thread
  • the dowel body is spread and thus pressed against the borehole that receives it, which enables transmission of tensile, compressive and transverse forces via the heavy-duty dowel.
  • the heavy-duty dowel known from DE-OS 20 46 341 is not suitable for such load-bearing or transmission problems because, on the one hand, the individual slats lack the necessary stability as a supporting element and, on the other hand, the non-supporting hard shell is unfavorably with the same, that common borehole pressing force is loaded. If, for example, the non-load-bearing hard shell, a facade panel or the like yields to this pressing force, the dowel connection is unsafe or even loosened altogether.
  • the object of the invention is to specify a heavy-duty dowel of the type mentioned at the outset, with which high transverse, tensile and compressive forces are exerted on a component with superimposed non-load-bearing component layers on attached components such as
  • Balconies, technical devices, scaffolding or the like, can be permanently transmitted safely.
  • the dowel body is designed as a one-piece tube and receives the abutment body on the end face facing away from the dowel tip, and in that the abutment body on its first outer end face is provided with formations which are intended to engage a tool for securing against rotation during assembly is.
  • the heavy-duty dowel with an outer diameter that is adapted to the borehole is able to withstand predictable transverse and even buckling forces and, at the same time, is able to bridge non-load-bearing components such as dam layers and facing shells or facade panels.
  • the design as a one-piece tube only anchors that of the dowel tip near the end face by widening with deformation of the pipe end face, so that there is an effective undercut anchorage in the load-bearing component.
  • the abutment assigned to the pipe on the side facing away from the dowel tip can also be fixed in a torsion-proof manner by means of its configurations for securing the position of the pipe.
  • the heavy-duty dowel is also anchored in the load-bearing component in a torsion-resistant manner using the inventive concept.
  • Such heavy-duty dowels are usually installed by means of stationary drilling and setting devices, all shells or layers being drilled together up to the load-bearing component, then the drilling residues are removed and the dowel set.
  • the design of the heavy-duty dowel according to the invention considerably reduces the time required for assembly compared to the known designs.
  • the formations are formed by at least two recesses provided in the abutment body at a distance from the threaded rod. These can advantageously be formed by blind holes. However, it is also possible to provide slots or grooves which are arranged, for example, on the free end face of the abutment body in a radially extending manner.
  • the abutment body is rotationally symmetrical and at least partially provided with an outer diameter which corresponds to the inner diameter of the pipe.
  • a protruding collar which is adapted to the wall thickness of the tube, adjoins the area of the outside diameter.
  • a tapering cone adjoins the area of the outside diameter.
  • the abutment body in its axial extent on a first part is cylindrical with an outside diameter adapted to the inside diameter of the tube, on a second part with a cylindrical collar with an outside diameter of the pipe adapted outer diameter and on a third part is provided with a cone, the smallest diameter of which is adapted to the pipe inner diameter and the largest diameter of which is the pipe outer diameter.
  • the abutment body is provided on its second end face with moldings which are certain for the engagement of a tool for securing against rotation during assembly and which correspond to those on the first end face.
  • the abutment body surrounds the threaded rod with a bore that is continuous in the axial direction.
  • the bore can be arranged centrally or can also be arranged eccentrically parallel to the axis of the abutment body.
  • the bore is a threaded bore that corresponds to the thread of the threaded rod.
  • This thread is advantageously a left-hand thread.
  • this is provided, at least on the side facing the dowel tip, with particular preference with at least three slots parallel to the generatrix, arranged regularly distributed over the circumference of the tube.
  • the one-piece tube On the side facing away from the dowel side, the one-piece tube is preferably provided with two slots parallel to the generatrix, arranged asymmetrically over the circumference of the tube.
  • the one-piece tube on the side facing away from the dowel tip is equipped with several slots distributed only about half the circumference of the tube.
  • the threaded rod is provided with two opposing threads (right / left-hand thread), one of which is assigned to one of the end faces of the one-piece pipe.
  • the threaded rod on the free end of its side facing away from the dowel tip is equipped with a shape which is designed to engage a tool for torque-locking twisting during assembly.
  • a tool for torque-locking twisting This can e.g. a hexagon head for a ring or open-end wrench or a nut or a recess intended for the engagement of an Allen key,
  • the one-piece tube can be at least partially provided on the outside of the jacket with a roughened surface.
  • the tube, the expansion body, the abutment body and the threaded rod consist of a corrosion-resistant material.
  • a stainless, high-strength steel can be provided as the corrosion-resistant material, e.g. a chrome-nickel steel material.
  • a heavy-duty dowel according to the invention is shown schematically in section within a multi-layer wall.
  • 2 shows in a first embodiment, schematically in section, a heavy-duty dowel according to the invention in an enlarged view.
  • FIG. 3 shows schematically as a detail the abutment body from FIG. 2 in a top view.
  • a second, somewhat different embodiment of the heavy-duty dowel according to the invention is partially shown schematically enlarged in section.
  • Fig. 5 is schematically drawn as a detail of the abutment body according to Figure 4 in a view.
  • FIG. 6 shows a longitudinal view of a further abutment body schematically in an enlarged view.
  • FIGS. 7 and 8 schematically show two sections VII - VII and VIII - VIII of the one-piece tube from FIG. 2.
  • the heavy-duty dowel according to the invention is installed as shown in FIG. 1 in a wall system 2, which consists, for example, of a load-bearing concrete slab 3, a heat insulation layer 4 and a front facade slab 5 made of lightweight concrete.
  • the heavy-duty dowel 1 sits in a borehole 6, which is produced in one operation with a drill bit using the wet or dry method, all parts 3 to 5 of the wall system 2 being drilled together.
  • the heavy-duty dowel 1 has a dowel body designed as a one-piece tube 7, the dowel tip 8 of which extends deeply into the borehole 6 of the concrete slab 3 and is anchored there.
  • the one-piece pipe 7 projects through the space filled by the thermal insulation layer 4 between the concrete plate 3 and the facade plate 5 to the outer surface 9 of this facade plate 5 and bridges it.
  • the one-piece tube 7 is made of a continuous tube cross-section with planba- rer load for tensile, compressive, transverse and buckling forces existing metal carrier, which can be made for example of a stainless steel, in particular a chrome-nickel-steel material.
  • FIG. 1 holding or supporting members of attachments, such as construction icons, scaffolding, technical devices or the like, can be attached to the tube 7, if necessary.
  • This is shown with a screw-on angle piece 10.
  • I has a sleeve-shaped dowel body 7a formed from the one-piece tube 7, which is axially penetrated by a threaded rod 11.
  • an expansion body 12 is arranged on the face side, which is intended to widen the tube 7.
  • the expansion body 12 is connected to the threaded rod 11;
  • the threaded rod 11 is provided at its end associated with the dowel tip 8 with a right-hand thread 14, into which a e.g. threaded hole 15 arranged centrally in the expansion body 12 engages.
  • a left-hand thread 17 is formed in the threaded rod 11 in the region of the free end 16, into which an abutment body 18 engages.
  • the abutment body 18 is in the illustrated embodiment compared to the expansion body 12 by rotating the threaded rod
  • the threaded rod 11 in the embodiment shown in FIG. 2 is inclined at a small angle
  • the abutment body 18 is provided on its first end face 20 with formations 21, which are spaced from the threaded rod 11 and the threaded bore 19 recesses, which in turn are formed by blind holes. These blind holes are intended for the engagement of a tool for securing against rotation during assembly, the free end 16 of the threaded rod 11 advantageously remaining free.
  • the abutment body 18 is - as shown in FIGS. 2 and 3 - rotationally symmetrical and at least partially provided with an outer diameter which corresponds to the inner diameter of the tube 7.
  • the outer contour of the abutment body, similar to that of the expansion body 12, is conical.
  • contour can also be essentially cylindrical, as the embodiment of FIGS. 4 and 5 shows, in which the same parts are provided with the same reference numerals.
  • the abutment body 18 has a projecting collar 22 which is adapted to the wall thickness 23 of the tube 7.
  • the abutment body 18 can also be designed according to FIG. 6. In its axial extent, it is cylindrical on a first part 25 with an outer diameter D adapted to the inner diameter of the tube 7, on a second part 26 with the cylindrical collar 22 with an outer diameter adapted to the outer diameter of the tube and on a third part 27 with an Provide cone 24, the smallest diameter of which is adapted to the inner pipe diameter and the largest diameter of which is the outer pipe diameter.
  • the abutment body 18 has formations 21 on both end faces, that is to say also on its second end face 28, which are intended for the engagement of a tool for securing against rotation during assembly. Also in this abutment body 18 according to FIG.
  • the threaded bore 19 of the abutment body is arranged eccentrically as in that of the abutment body according to FIG. 3.
  • the threaded rod 11 is enclosed with a bore that is continuous in the axial direction.
  • the tube 7 is provided in the region of the free end 16 of the threaded rod 11, ie on the side facing away from the dowel tip 8 with two slots 29 arranged parallel to the generatrix and distributed asymmetrically over the circumference of the tube 7.
  • the slots 29, in connection with the eccentrically arranged threaded bore 19, favor a preferred widening of the tubular jacket between the slots 29 during assembly, which, in the case of a horizontally extending dowel axis, preferably abuts the upper edge of the borehole 6 in the vertical direction during the widening and the dowel body 7a adjust in the borehole so that the dowel body in the concrete slab 3 sits vertically on the lower borehole wall.
  • the heavy-duty dowel 1 is thus able to absorb transverse forces in the direction of gravity without play.
  • the tube 7 is provided with at least three slots 30 which are parallel to the generatrix and which are distributed over the circumference of the tube 7 and which promote spacing and which during assembly favor the expansion of the dowel tip 8 and cause an undercut anchorage in the borehole 6.
  • the one-piece tube is at least partially provided on the outside of the jacket with a roughened surface.
  • the tube 7, the expansion body 12, the abutment body 18 and the threaded rod 11 are made of a corrosion-resistant material, in particular of a stainless high-strength steel, e.g. Chromium-nickel steel.
  • the slots 29, 30 have a length corresponding to approximately twice the axial extent of the abutment or expansion body 12, 18. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Materials For Medical Uses (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention relates to a heavy duty dowel (1), especially for multi-layered components. The sleeve-type dowel body (7a) is axially penetrated by a threaded rod (11) and is provided, on one end, with an expansion body (12) that is arranged on the front side of the region of the dowel point (8), expands the dowel body (7a) and is connected to the threaded rod (11). On the other end of the dowel body (7a), an abutment body (18) is connected to the threaded rod (11), in relation to which the expansion body (12) can be axially displaced in the dowel body (7a) by rotating the threaded rod (11). According to the invention, the dowel body (7a) is embodied as a one-piece tube (7) that receives the abutment body (18) on the front end opposite to the dowel point (8), said abutment body (18) being provided with recesses (21), e.g. blind holes, on its first outer front side (20), which are used to engage a tool in order to secure against twisting during assembly.

Description

Beschreibungdescription
SchwerlastdübelHeavy-duty dowels
Die Erfindung bezieht sich auf einen Schwerlastdübel mit einem hülsenförmigen, von einer Gewindestange axial durchsetzten Dü¬ belkörper, mit einem im Bereich der Dübelspitze stirnseitig angeordneten und den Dübelkörper aufweitenden, mit der Gewindestange verbundenen Spreizkörper und mit einem mit der Gewinde- Stange verbundenen Widerlagerkörper, dem gegenüber der Spreizkörper durch Verdrehen der Gewindestange axial im Dübelkörper verschiebbar ist.The invention relates to a heavy-duty dowel with a sleeve-shaped, axially penetrated by a threaded rod SI ¬ belkörper, frontally arranged with a in the area of the dowel point and expanding the dowel body, with the threaded rod connected spreader and with a part connected to the threaded rod abutment body, the is axially displaceable in the dowel body relative to the expansion body by turning the threaded rod.
Bei einem beispielsweise aus der DE-OS 2046 341 bekannten Schwerlastdübel dieser Art ist der hülsenförmige Dübelkörper aus drei aus Stahlblech bestehenden Lamellen segmentartig zusammengesetzt, die ihrerseits durch Spannglieder zusammengehalten werden. Auf einer diesen Hülsenkörper durchsetzenden Gewindestange ist in dem der Dübelspitze zugewandten Bereich ein ko- nischer Spreizkörper aufgeschraubt, der mit einem ebenfalls konisch ausgeführten Widerlagerkörper zusammenwirkt. Der Widerlagerkörper ist während der Montage des Schwerlastdübels im wesentlichen ortsfest mit der Gewindestange verbunden, so dass sich bei einem Verdrehen der Gewindestange eine Relativbewegung zwischen dem Spreizkörper und dem Widerlagerkörper ergibt. Sofern das Gewinde der Gewindestange ein Rechtsgewinde ist, wird bei einem Verdrehen der Gewindestange im Uhrzeigersinn eine Spreizung des Dübelkörpers und damit eine Pressung an das ihn aufnehmende Bohrloch bewirkt, die eine Übertragung von Zug-, Druck- und Querkräften über den Schwerlastdübel ermöglicht.In a heavy-duty dowel of this type, known for example from DE-OS 2046 341, the sleeve-shaped dowel body is composed of three segments made of sheet steel, which in turn are held together by tendons. On a threaded rod passing through this sleeve body, a conical expansion body is screwed in the area facing the dowel tip, which cooperates with an abutment body that is also conical. The abutment body is essentially fixedly connected to the threaded rod during assembly of the heavy-duty dowel, so that when the threaded rod is rotated, there is a relative movement between the expansion body and the abutment body. If the thread of the threaded rod is a right-hand thread, when the threaded rod is turned clockwise, the dowel body is spread and thus pressed against the borehole that receives it, which enables transmission of tensile, compressive and transverse forces via the heavy-duty dowel.
Bei mehrschaligen Wand-, Boden- und Deckenkonstruktionen, bei denen entweder aus akustischen oder aus wärmetechnischen Gründen ein Masse-Feder-Masse-System oder eine aus einer tragenden Wand-, Boden- oder Deckenplatte mit vorgesetzter Dämmschicht und einer weiteren nicht tragenden Hartschale bestehender Baukörper vorliegt, besteht das Problem, sowohl bei Altbauten für erforderliche Nachrüstungen als auch bei Neubauten mittels Schwerlastdübeln, die in den tragenden Platten zu verankern sind, die nichttragenden Bauteilschichten zu überbrücken und sicher Zug-, Druck- und Querkräfte von Anbauteilen, wie z.B. Baikonen, technischen Geräten, Gerüsten oder dergl. auf die tragende Platte zu übertragen. Für derartige Lastaufnahme- bzw. -Übertragungsprobleme ist jedoch der aus der DE-OS 20 46 341 bekannte Schwerlastdübel nicht geeignet, weil zum einen den Einzellamellen die notwendige Stabilität als Tragorgan fehlt und zum andern die nicht tragende Hartschale in ungünstiger Weise mit der gleichen, das gemeinsame Bohrloch pressenden Kraft belastet wird. Gibt beispielsweise die nicht tragende Hartschale, eine Fassadenplatte oder dergl., dieser Presskraft nach, wird die Dübelverbindung unsicher oder sogar insgesamt gelöst.For multi-layer wall, floor and ceiling constructions, where either a mass-spring-mass system for acoustic or thermal reasons or a structure consisting of a load-bearing wall, floor or ceiling panel with a layer of insulation and another non-load-bearing hard shell the problem exists, both in old buildings for Required retrofits as well as for new buildings using heavy-duty dowels, which are to be anchored in the load-bearing plates, bridge the non-load-bearing component layers and safely pull, push and shear forces of add-on parts, such as construction icons, technical devices, scaffolding or the like, on the load-bearing plate transferred to. However, the heavy-duty dowel known from DE-OS 20 46 341 is not suitable for such load-bearing or transmission problems because, on the one hand, the individual slats lack the necessary stability as a supporting element and, on the other hand, the non-supporting hard shell is unfavorably with the same, that common borehole pressing force is loaded. If, for example, the non-load-bearing hard shell, a facade panel or the like yields to this pressing force, the dowel connection is unsafe or even loosened altogether.
Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, einen Schwerlastdübel der eingangs genannten Art anzugeben, mit dem hohe Quer-, Zug- und Druckkräfte von einem Bauteil mit vorge- setzten nicht tragenden Bauteilschichten auf Änbauteile, wieProceeding from this, the object of the invention is to specify a heavy-duty dowel of the type mentioned at the outset, with which high transverse, tensile and compressive forces are exerted on a component with superimposed non-load-bearing component layers on attached components such as
Balkone, technische Geräte, Gerüste oder dergl., dauerhaft sicher übertragen werden können.Balconies, technical devices, scaffolding or the like, can be permanently transmitted safely.
Nach der Erfindung wird dies dadurch gelöst, dass der Dübelkör- per als einteiliges Rohr ausgebildet ist und auf der der Dübelspitze abgewandten Stirnseite den Widerlagerkörper aufnimmt und dass der Widerlagerkörper an seiner ersten äußeren Stirnseite mit zum Eingriff eines Werkzeuges zur Verdrehsicherung während der Montage bestimmten Ausformungen versehen ist.According to the invention, this is achieved in that the dowel body is designed as a one-piece tube and receives the abutment body on the end face facing away from the dowel tip, and in that the abutment body on its first outer end face is provided with formations which are intended to engage a tool for securing against rotation during assembly is.
Durch die Ausbildung des Dübelkörpers als einteiliges Rohr ist der Schwerlastdübel mit einem dem Bohrloch entsprechend ange- passten Außendurchmesser in der Lage, planbaren Quer- und sogar Knickkräften standzuhalten und damit gleichzeitig nicht tragen- de Bauteile, wie Dammschichten und Vorsatzschalen oder Fassadenplatten unbelastet zu überbrücken. Die Ausbildung als einteiliges Rohr macht nur eine Verankerung der der Dübelspitze nahen Stirnseite durch Aufweiten mit Verformung der Rohrstirnseite möglich, so dass sich eine wirksame Hinterschnittverankerung im tragenden Bauteil ergibt. Um die geforderten vom Rohr zu übertragenden Quer-, Zug- und Druckkräfte sicher zu gewähr- leisten, kann das dem Rohr auf der der Dübelspitze abgewandten Seite zugeordnete Widerlager mittels seiner Ausformungen zur Lagesicherung auch des Rohres während der Montage verdrehsicher fixiert werden. Nach erfolgter Montage ist der Schwerlastdübel durch Anwendung des Erfindungsgedankens auch verdrehungssteif im tragenden Bauteil verankert.Thanks to the design of the dowel body as a one-piece tube, the heavy-duty dowel with an outer diameter that is adapted to the borehole is able to withstand predictable transverse and even buckling forces and, at the same time, is able to bridge non-load-bearing components such as dam layers and facing shells or facade panels. The design as a one-piece tube only anchors that of the dowel tip near the end face by widening with deformation of the pipe end face, so that there is an effective undercut anchorage in the load-bearing component. In order to guarantee the required transverse, tensile and compressive forces to be transmitted by the pipe, the abutment assigned to the pipe on the side facing away from the dowel tip can also be fixed in a torsion-proof manner by means of its configurations for securing the position of the pipe. After assembly, the heavy-duty dowel is also anchored in the load-bearing component in a torsion-resistant manner using the inventive concept.
Üblicherweise werden derartige Schwerlastdübel mittels ortsfest montierbarer Bohr- und Setz orrichtungen eingebaut, wobei zunächst alle Schalen bzw. Schichten bis zum tragenden Bauteil hinein gemeinsam verbohrt werden, danach die Bohrrückstände entfernt werden und der Dübel gesetzt wird. Die e findungsgemäße Bauform des Schwerlastdübels reduziert gegenüber den bekannten Bauformen den Zeitaufwand bei der Montage beträchtlich.Such heavy-duty dowels are usually installed by means of stationary drilling and setting devices, all shells or layers being drilled together up to the load-bearing component, then the drilling residues are removed and the dowel set. The design of the heavy-duty dowel according to the invention considerably reduces the time required for assembly compared to the known designs.
In Weiterbildung des Erfindungsgedankens ist vorteilhaft vorgesehen, dass die Ausformungen von mindestens zwei im Abstand von der Gewindestange im Widerlagerkörper vorgesehenen Ausnehmungen gebildet sind. Diese können mit Vorteil von Sacklochbohrungen gebildet sein. Es ist aber ebenso möglich, Schlitze oder Nuten vorzusehen, die beispielsweise an der freien Stirnseite des Widerlagerkörpers radial verlaufend angeordnet sind.In a further development of the inventive concept, it is advantageously provided that the formations are formed by at least two recesses provided in the abutment body at a distance from the threaded rod. These can advantageously be formed by blind holes. However, it is also possible to provide slots or grooves which are arranged, for example, on the free end face of the abutment body in a radially extending manner.
Bei einer ersten Ausführungsform des erfindungsgemäßen Schwerlastdübels ist der Widerlagerkörper rotationssymmetrisch ausge- bildet und zumindest teilweise mit einem Außendurchmesser versehen, der dem Innendurchmesser des Rohres entspricht. Eine andere Alternative ergibt sich, wenn sich an den Bereich des Außendurchmessers ein vorstehender, der Wandstärke des Rohres ange- passter Kragen anschließt. Eine weitere vorteilhafte Alternative besteht darin, dass sich an den Bereich des Außendurchmessers ein sich verjüngender Konus anschließt. Es ist aber auch vorteilhaft möglich, diese beiden Alternativen zu kombinieren, derart, dass der Widerlagerkörper in seiner axialen Erstreckung auf einem ersten Teil zylindrisch mit einem dem Innendurchmesser des Rohres angepassten Außendurchmesser, auf einem zweiten Teil mit einem zylindrischen Kragen mit einem dem Außendurchmesser des Rohres angepassten Außendurchmesser und auf einem dritten Teil mit einem Konus versehen ist, dessen kleinster Durchmesser dem Rohr-Innendurchmesser und dessen größter Durchmesser dem Rohr-Außendurchmesser angepasst ist.In a first embodiment of the heavy-duty dowel according to the invention, the abutment body is rotationally symmetrical and at least partially provided with an outer diameter which corresponds to the inner diameter of the pipe. Another alternative is obtained if a protruding collar, which is adapted to the wall thickness of the tube, adjoins the area of the outside diameter. Another advantageous alternative consists in that a tapering cone adjoins the area of the outside diameter. However, it is also advantageously possible to combine these two alternatives in such a way that the abutment body in its axial extent on a first part is cylindrical with an outside diameter adapted to the inside diameter of the tube, on a second part with a cylindrical collar with an outside diameter of the pipe adapted outer diameter and on a third part is provided with a cone, the smallest diameter of which is adapted to the pipe inner diameter and the largest diameter of which is the pipe outer diameter.
Hierbei wird zweckmäßig vorgesehen, dass der Widerlagerkörper an seiner zweiten Stirnseite mit zum Eingriff eines Werkzeuges zur Verdrehsicherung während der Montage bestimmten Ausformungen versehen ist, die denen auf der ersten Stirnseite entsprechen.It is expediently provided here that the abutment body is provided on its second end face with moldings which are certain for the engagement of a tool for securing against rotation during assembly and which correspond to those on the first end face.
In allen vorgenannten Ausbildungsformen des Widerlagerkörpers ist vorteilhaft vorgesehen, dass der Widerlagerkörper die Gewindestange mit einer in Axialrichtung durchgehenden Bohrung umschließt. Die Bohrung kann dabei zentrisch angeordnet sein oder aber auch parallel zur Achse des Widerlagerkörpers exzentrisch angeordnet sein.In all of the above-mentioned embodiments of the abutment body, it is advantageously provided that the abutment body surrounds the threaded rod with a bore that is continuous in the axial direction. The bore can be arranged centrally or can also be arranged eccentrically parallel to the axis of the abutment body.
In beiden Fällen ergibt sich ein konstruktiver und montagetechnischer Vorteil, wenn die Bohrung eine Gewindebohrung ist, die mit dem Gewinde der Gewindestange korrespondiert. Vorteilhaft ist dieses Gewinde ein Linksgewinde.In both cases, there is a constructive and assembly-related advantage if the bore is a threaded bore that corresponds to the thread of the threaded rod. This thread is advantageously a left-hand thread.
Zur Begünstigung der Aufweitung des einteiligen Rohres ist dieses zumindest auf der der Dübelspitze zugewandten Seite mit be- sonderem Vorzug mit mindestens drei mantellinienparallelen, regelmäßig über den Umfang des Rohres verteilt angeordneten Schlitzen versehen.To favor the widening of the one-piece tube, this is provided, at least on the side facing the dowel tip, with particular preference with at least three slots parallel to the generatrix, arranged regularly distributed over the circumference of the tube.
Auf der der Dübelseite abgewandten Seite ist vorzugsweise das einteilige Rohr mit zwei mantellinienparallelen, unsymmetrisch über den Umfang des Rohres angeordneten Schlitzen versehen. Es ist aber auch möglich, eine ähnliche Aufweitungswirkung zu er- zielen, wenn das einteilige Rohr auf der der Dübelspitze abgewandten Seite mit mehreren nur etwa über den halben Umfang des Rohres verteilten Schlitzen ausgestattet ist.On the side facing away from the dowel side, the one-piece tube is preferably provided with two slots parallel to the generatrix, arranged asymmetrically over the circumference of the tube. However, it is also possible to achieve a similar expansion effect. aim if the one-piece tube on the side facing away from the dowel tip is equipped with several slots distributed only about half the circumference of the tube.
Bezüglich der Montage des Schwerlastdübels ergibt sich ein wesentlicher Vorteil, wenn die Gewindestange mit zwei entgegengesetzt verlaufenden Gewinden (Rechts-/Linksgewinde) versehen ist, von denen eines je einer der Stirnseiten des einteiligen Rohres zugeordnet ist.With regard to the installation of the heavy-duty dowel, there is a significant advantage if the threaded rod is provided with two opposing threads (right / left-hand thread), one of which is assigned to one of the end faces of the one-piece pipe.
Zur Erleichterung der manuellen oder maschinellen Montage des Schwerlastdübels ist die Gewindestange am freien Ende ihrer der Dübelspitze abgewandten Seite mit zum Eingriff eines Werkzeuges zum drehmomentenschlüssigen Verdrehen während der Montage be- stimmten Ausformung ausgestattet. Diese kann z.B. ein Sechskantkopf für einen Ring- oder Gabelschlüssel bzw. eine Nuss oder eine zum Eingriff eines Inbusschlüssels bestimmte Ausnehmung sein,To facilitate manual or mechanical assembly of the heavy-duty dowel, the threaded rod on the free end of its side facing away from the dowel tip is equipped with a shape which is designed to engage a tool for torque-locking twisting during assembly. This can e.g. a hexagon head for a ring or open-end wrench or a nut or a recess intended for the engagement of an Allen key,
Zur Erleichterung der Montage mit einer Dübelsetzmaschine kann das einteilige Rohr mantelaußenseitig zumindest teilweise mit einer aufgerauten Oberfläche versehen sein.To facilitate assembly with a dowel setting machine, the one-piece tube can be at least partially provided on the outside of the jacket with a roughened surface.
Eine die Standzeit des erfindungsgemäßen Schwerlastdübels verlängernde Ausbildungsform ergibt sich, wenn das Rohr, der Spreizkörper, der Widerlagerkörper und die Gewindestange aus einem korrosionsbeständigen Material bestehen. Hierbei kann als korrosionsbeständiges Material ein nichtrostender, hochfester Stahl vorgesehen sein, z.B. ein Chrom-Nickel-Stahl-Werkstoff.An embodiment which extends the service life of the heavy-duty dowel according to the invention is obtained if the tube, the expansion body, the abutment body and the threaded rod consist of a corrosion-resistant material. A stainless, high-strength steel can be provided as the corrosion-resistant material, e.g. a chrome-nickel steel material.
Weitere Einzelheiten und Vorteile der erfindungsgemäßen Ausfüh- rungsform eines Schwerlastdübels sind anhand der Zeichnung beschrieben und deren Wirkungsweise erläutert.Further details and advantages of the embodiment of a heavy-duty dowel according to the invention are described with reference to the drawing and their mode of operation is explained.
In Fig. 1 ist ein erfindungsgemäßer Schwerlastdübel im Schnitt innerhalb einer mehrschaligen Wand schematisch dargestellt. Die Fig. 2 zeigt in einer ersten Aus ührungsform schematisch im Schnitt einen erfindungsgemäßen Schwerlastdübel in einer vergrößerten Darstellung.In Fig. 1, a heavy-duty dowel according to the invention is shown schematically in section within a multi-layer wall. 2 shows in a first embodiment, schematically in section, a heavy-duty dowel according to the invention in an enlarged view.
Die Fig. 3 zeigt schematisch als Einzelheit den Widerlagerkörper aus Fig.2 in einer Draufsicht.3 shows schematically as a detail the abutment body from FIG. 2 in a top view.
In Fig. 4 ist eine zweite, etwas andere Ausführungsform des erfindungsgemäßen Schwerlastdübels zum Teil im Schnitt schematisch vergrößert dargestellt.In Fig. 4, a second, somewhat different embodiment of the heavy-duty dowel according to the invention is partially shown schematically enlarged in section.
In Fig. 5 ist schematisch als Einzelheit der Widerlagerkörper nach Fig.4 in einer Ansicht gezeichnet.In Fig. 5 is schematically drawn as a detail of the abutment body according to Figure 4 in a view.
Die Fig. 6 zeigt eine Längsansicht eines weiteren Widerlagerkörpers schematisch in vergrößerter Darstellung.6 shows a longitudinal view of a further abutment body schematically in an enlarged view.
In den Figuren 7 und 8 sind zwei Schnitte VII - VII und VIII - VIII des einteiligen Rohres aus Fig. 2 schematisch darge- stellt.FIGS. 7 and 8 schematically show two sections VII - VII and VIII - VIII of the one-piece tube from FIG. 2.
Der Schwerlastdübel nach der Erfindung ist entsprechend der Darstellung in Fig. 1 in ein Wandsystem 2 eingebaut, das beispielsweise aus einer tragenden Betonplatte 3, einer Wärmedämmschicht 4 und einer vorgesetzten, aus Leichtbeton gefertigten Fassadenplatte 5 besteht. Der Schwerlastdübel 1 sitzt in einem Bohrloch 6, das in einem Arbeitsgang mit einer Bohrkrone im Nass- oder Trockenverfahren hergestellt ist, wobei alle Teile 3 bis 5 des Wandsystems 2 gemeinsam verbohrt sind. Ersichtlich hat der Schwerlastdübel 1 einen als einteiliges Rohr 7 ausgebildeten Dübelkörper, dessen Dübelspitze 8 in das Bohrloch 6 der Betonplatte 3 tief hineinreicht und dort verankert ist. Das einteilige Rohr 7 ragt durch den von der Wärmedämmschicht 4 ausgefüllten Zwischenraum zwischen der betonplatte 3 und der fassadenplatte 5 bis zur äußeren Oberfläche 9 dieser fassadenplatte 5 hindurch und überbrückt sie. Wie die Fig.l zeigt, stellt das einteilige Rohr 7 einen aus einem durchgehenden Rohrquerschnitt mit planba- rer Belastung für Zug-, Druck-, Quer- und Knickkräfte bestehenden Metallträger dar, der z.B. aus einem nichtrostenden Stahl, insbesondere einem Chrom-Nickel-Stahl-Werkstoff gefertigt werden kann.The heavy-duty dowel according to the invention is installed as shown in FIG. 1 in a wall system 2, which consists, for example, of a load-bearing concrete slab 3, a heat insulation layer 4 and a front facade slab 5 made of lightweight concrete. The heavy-duty dowel 1 sits in a borehole 6, which is produced in one operation with a drill bit using the wet or dry method, all parts 3 to 5 of the wall system 2 being drilled together. It can be seen that the heavy-duty dowel 1 has a dowel body designed as a one-piece tube 7, the dowel tip 8 of which extends deeply into the borehole 6 of the concrete slab 3 and is anchored there. The one-piece pipe 7 projects through the space filled by the thermal insulation layer 4 between the concrete plate 3 and the facade plate 5 to the outer surface 9 of this facade plate 5 and bridges it. As Fig.l shows, the one-piece tube 7 is made of a continuous tube cross-section with planba- rer load for tensile, compressive, transverse and buckling forces existing metal carrier, which can be made for example of a stainless steel, in particular a chrome-nickel-steel material.
An dem Rohr 7 können, wie sich der Fig.l entnehmen lässt, bedarfsweise Halte- oder Tragorgane von Anbauten, wie Baikonen, Gerüsten, technischen Geräten oder dergl. befestigt werden. Dies ist mit einem anschraubbaren Winkelstück 10 dargestellt.As can be seen in FIG. 1, holding or supporting members of attachments, such as construction icons, scaffolding, technical devices or the like, can be attached to the tube 7, if necessary. This is shown with a screw-on angle piece 10.
Der in Fig. 2 in einem Längsschnitt dargestellte SchwerlastdübelThe heavy-duty dowel shown in a longitudinal section in FIG. 2
I hat einen aus dem einteiligen Rohr 7 gebildeten hülsenförmigen Dübelkörper 7a, der von einer Gewindestange 11 axial durchsetzt ist. Im Bereich der Dübelspitze 8 ist ein Spreizkörper 12 stirn- seitig angeordnet, der zur Aufweitung des Rohres 7 bestimmt ist. Der Spreizkörper 12 ist mit der Gewindestange 11 verbunden; im dargestellten Ausführungsbeispiel ist die Gewindestange 11 an ihrem der Dübelspitze 8 zugeordneten Ende mit einem Rechtsgewinde 14 versehen, in das ein z.B. zentrisch im Spreizkörper 12 an- geordnetes Gewindeloch 15 eingreift. Bei einem Verdrehen der Gewindestange 11 im Uhrzeigersinn am freien Ende 16 (Pfeilrichtung R) wird der Spreizkörper 12 auf das freie Ende 16 axial zu bewegt. Um die erforderliche Spreizkraft aufzubringen, ist im Bereich des freien Endes 16 ein Linksgewinde 17 in die Gewinde- stange 11 eingeformt, in das ein Widerlagerköroper 18 eingreift. Der Widerlagerkörper 18 ist im dargestellten Ausführungsbeispiel gegenüber dem Spreizkörper 12 durch Verdrehen der GewindestangeI has a sleeve-shaped dowel body 7a formed from the one-piece tube 7, which is axially penetrated by a threaded rod 11. In the area of the dowel tip 8, an expansion body 12 is arranged on the face side, which is intended to widen the tube 7. The expansion body 12 is connected to the threaded rod 11; In the illustrated embodiment, the threaded rod 11 is provided at its end associated with the dowel tip 8 with a right-hand thread 14, into which a e.g. threaded hole 15 arranged centrally in the expansion body 12 engages. When the threaded rod 11 is turned clockwise at the free end 16 (arrow direction R), the expansion body 12 is moved axially toward the free end 16. In order to apply the required spreading force, a left-hand thread 17 is formed in the threaded rod 11 in the region of the free end 16, into which an abutment body 18 engages. The abutment body 18 is in the illustrated embodiment compared to the expansion body 12 by rotating the threaded rod
II axial im Dübelkörper verschiebbar: wird die Gewindestange 11 am freien Ende 16 im Uhrzeigersinn verdreht, bewegen sich Wider- lagerkörper 18 und Spreizkörper 12 aufeinander zu. Ersichtlich ist auch der Widerlagerkörper 18 hierbei als spreizendes Teil ausgebildet.II axially displaceable in the dowel body: if the threaded rod 11 is rotated clockwise at the free end 16, the abutment body 18 and the expansion body 12 move towards one another. Obviously, the abutment body 18 is also designed as a spreading part.
Die Gewindestange 11 verläuft bei dem in Fig. 2 dargestellten Ausführungsbeispiel unter einem kleinen Winkel geneigt zurThe threaded rod 11 in the embodiment shown in FIG. 2 is inclined at a small angle
Längsachse des Rohres 7, der sich aus der exzentrisch im Widerlagerkörper 18 angeordneten Gewindebohrung 19 für das Linksge- winde 17 ergibt. Der Widerlager örper 18 ist auf seiner ersten Stirnseite 20 mit Ausformungen 21 versehen, die im Abstand von der Gewindestange 11 und der Gewindebohrung 19 angeordnete Ausnehmungen sind, welche ihrerseits von Sacklochbohrungen gebildet sind. Diese Sacklochbohrungen sind zum Eingriff eines Werkzeuges zur Verdrehsicherung während der Montage bestimmt, wobei vorteilhaft das freie Ende 16 der Gewindestange 11 frei bleibt.Longitudinal axis of the tube 7, which results from the threaded bore 19 arranged eccentrically in the abutment body 18 for the left-hand winds 17 results. The abutment body 18 is provided on its first end face 20 with formations 21, which are spaced from the threaded rod 11 and the threaded bore 19 recesses, which in turn are formed by blind holes. These blind holes are intended for the engagement of a tool for securing against rotation during assembly, the free end 16 of the threaded rod 11 advantageously remaining free.
Der Widerlagerkörper 18 ist - wie die Fig. 2 und 3 zeigen - ro- tationssymmetrisch ausgebildet und zumindest teilweise mit einem Außendurchmesser versehen, der dem Innendurchmesser des Rohres 7 entspricht. Die Außenkontur des Widerlagerkörpers verläuft, ähnlich wie die des Spreizkörpers 12, konisch.The abutment body 18 is - as shown in FIGS. 2 and 3 - rotationally symmetrical and at least partially provided with an outer diameter which corresponds to the inner diameter of the tube 7. The outer contour of the abutment body, similar to that of the expansion body 12, is conical.
Die Kontur kann aber auch im wesentlichen zylindrisch sein, wie das Ausführungsbeispiel nach den Fig. 4 und 5 zeigt, in denen gleiche Teile mit gleichen Bezugszeichen versehen sind. Der Widerlagerkörper 18 hat dabei einen vorstehenden Kragen 22, der der Wandstärke 23 des Rohres 7 angepasst ist.However, the contour can also be essentially cylindrical, as the embodiment of FIGS. 4 and 5 shows, in which the same parts are provided with the same reference numerals. The abutment body 18 has a projecting collar 22 which is adapted to the wall thickness 23 of the tube 7.
Der Widerlagerkörper 18 kann aber auch entsprechend der Fig. 6 ausgeführt sein. Er ist dabei in seiner axialen Erstreckung auf einem ersten Teil 25 zylindrisch mit einem dem Innendurchmesser des Rohres 7 angepassten Außendurchmesser D, auf einem zweiten Teil 26 mit dem zylindrischen Kragen 22 mit einem dem Außendurchmesser des Rohres angepassten Außendurchmesser und auf einem dritten Teil 27 mit einem Konus 24 versehen, dessen kleinster Durchmesser dem Rohrinnendurchmesser und dessen größter Durchmesser dem Rohraußendurchmesser angepasst ist. Der Widerla- ger örper 18 hat auf beiden Stirnseiten, also auch auf seiner zweiten Stirnseite 28 Ausformungen 21, die zum Eingriff eines Werkzeuges zur Verdrehsicherung während der Montage bestimmt sind. Auch bei diesem Widerlagerkörper 18 nach Fig. 6 ist die Gewindebohrung 19 des Widerlagerkörpers wie bei der des Widerla- gerkörpers nach Fig. 3 exzentrisch angeordnet. In allen Ausführungsformen des Widerlagerkörpers 18 wird die Gewindestange 11 mit einer in Axialrichtung durchgehenden Bohrung umschlossen. Wie die Fig. 7 erkennen lässt, ist das Rohr 7 im Bereich des freien Endes 16 der Gewindestange 11, d.h. auf der der Dübelspitze 8 abgewandten Seite mit zwei mantellinienparallelen, un- symmetrisch über den Umfang des Rohres 7 verteilt angeordneten Schlitzen 29 versehen. Es ist aber auch möglich, das einteilige Rohr auf der der Dübelspitze 8 abgewandten Seite mit mehreren nur etwa über den halben Umfang des Rohres verteilten Schlitzen auszustatten. Die Schlitze 29 begünstigen im Zusammenhang mit der exzentrisch angeordneten Gewindebohrung 19 während der Montage eine bevorzugte Ausweitung des Rohrmantels zwischen den Schlitzen 29, die sich bei horizontal verlaufender Dübelachse bevorzugt an die in vertikaler Richtung obere Randbegrenzung des Bohrloches 6 während der Aufweitung anlegen und den Dübelkörper 7a im Bohrloch so justieren, dass sich der Dübelkörper in der Betonplatte 3 in vertikaler Richtung an die untere Bohrlochwandung aufsetzt. Damit ist der Schwerlastdübel 1 in der Lage, spielfrei Querkräfte in Schwerkraftrichtung aufzunehmen.The abutment body 18 can also be designed according to FIG. 6. In its axial extent, it is cylindrical on a first part 25 with an outer diameter D adapted to the inner diameter of the tube 7, on a second part 26 with the cylindrical collar 22 with an outer diameter adapted to the outer diameter of the tube and on a third part 27 with an Provide cone 24, the smallest diameter of which is adapted to the inner pipe diameter and the largest diameter of which is the outer pipe diameter. The abutment body 18 has formations 21 on both end faces, that is to say also on its second end face 28, which are intended for the engagement of a tool for securing against rotation during assembly. Also in this abutment body 18 according to FIG. 6, the threaded bore 19 of the abutment body is arranged eccentrically as in that of the abutment body according to FIG. 3. In all embodiments of the abutment body 18, the threaded rod 11 is enclosed with a bore that is continuous in the axial direction. As can be seen from FIG. 7, the tube 7 is provided in the region of the free end 16 of the threaded rod 11, ie on the side facing away from the dowel tip 8 with two slots 29 arranged parallel to the generatrix and distributed asymmetrically over the circumference of the tube 7. However, it is also possible to provide the one-piece tube on the side facing away from the dowel tip 8 with a plurality of slots which are only distributed approximately over half the circumference of the tube. The slots 29, in connection with the eccentrically arranged threaded bore 19, favor a preferred widening of the tubular jacket between the slots 29 during assembly, which, in the case of a horizontally extending dowel axis, preferably abuts the upper edge of the borehole 6 in the vertical direction during the widening and the dowel body 7a adjust in the borehole so that the dowel body in the concrete slab 3 sits vertically on the lower borehole wall. The heavy-duty dowel 1 is thus able to absorb transverse forces in the direction of gravity without play.
Wie die Fig. 8 als Schnitt durch das Rohr 7 im Bereich der Dübelspitze 8 zeigt, ist das Rohr 7 mit mindestens drei, die Auf- weitung begünstigenden mantellinienparallelen und regelmäßig ü- ber den Umfang des Rohres 7 verteilt angeordneten Schlitzen 30 versehen, die während der Montage die Aufweitung der Dübelspitze 8 begünstigen und eine Hinterschnittverankerung im Bohrloch 6 bewirken. Für manche Anwendungsfälle hat es sich als günstig erwiesen, wenn das einteilige Rohr mantelaußenseitig zumindest teilweise mit einer aufgerauten Oberfläche versehen ist. In allen Fällen besteht das Rohr 7, der Spreizkörper 12, der Widerla- gerkörper 18 und die Gewindestange 11 aus einem korrosionsbeständigen Material, insbesondere aus einem nicht rostenden hochfesten Stahl, z.B. Chrom-Nickel-Stahl.As shown in FIG. 8 as a section through the tube 7 in the region of the dowel tip 8, the tube 7 is provided with at least three slots 30 which are parallel to the generatrix and which are distributed over the circumference of the tube 7 and which promote spacing and which during assembly favor the expansion of the dowel tip 8 and cause an undercut anchorage in the borehole 6. For some applications it has proven to be advantageous if the one-piece tube is at least partially provided on the outside of the jacket with a roughened surface. In all cases, the tube 7, the expansion body 12, the abutment body 18 and the threaded rod 11 are made of a corrosion-resistant material, in particular of a stainless high-strength steel, e.g. Chromium-nickel steel.
Die Schlitze 29,30 haben eine etwa der zweifachen axialen Erstreckung des Widerlager- bzw. Spreizkörpers 12,18 entsprechende Länge. BezugszeichenlisteThe slots 29, 30 have a length corresponding to approximately twice the axial extent of the abutment or expansion body 12, 18. LIST OF REFERENCE NUMBERS
1 Schwerlastdübel1 heavy duty dowel
2 Wandsystem 3 Betonplatte2 wall system 3 concrete slab
4 Wärmedämmschicht4 thermal insulation layer
5 Fassadenplatte5 facade panel
6 Bohrloch6 borehole
7 einteiliges Rohr 7a Dübelkörper7 one-piece tube 7a dowel body
8 Dübelspitze8 dowel tip
9 Oberfläche9 surface
10 Winkelstück10 elbow
11 Gewindestange 12 Spreizkörper11 threaded rod 12 expanding body
13 Ende13 end
14 Rechtsgewinde14 right-hand thread
15 Gewindeloch15 threaded hole
16 freies Ende 17 Linksgewinde16 free end 17 left-hand thread
18 Widerlagerkörper18 abutment body
19 Gewindebohrung19 threaded hole
20 Stirnseite20 end face
21 Ausformungen 22 Kragen21 formations 22 collar
23 Wandstärke23 wall thickness
24 Konus24 cone
25 erstes Teil25 first part
26 zweites Teil 27 drittes Teil26 second part 27 third part
28 zweite Stirnseite28 second end face
29 Schlitze29 slots
30 Schlitze30 slots
D Außendurchmesser R Pfeilrichtung D outside diameter R arrow direction

Claims

Patentansprüche claims
1. Schwerlastdübel mit einem hülsenförmigen, von einer Gewin destange axial durchsetzten Dübelkörper, mit einem im Bereich der Dübelspitze stirnseitig angeordneten und den Dü- belkörper aufweitenden, mit der Gewindestange verbundenen Spreizkörper und mit einem mit der Gewindestange verbundenen Widerlagerkörper, dem gegenüber der Spreizkörper durch Verdrehen der Gewindestange axial im Dübelkörper verschiebbar ist, d a d u r c h g e k e n n z e i c h n e t, d a s s der Dübelkörper (7a) als einteiliges Rohr (7) ausgebildet ist und auf der der Dübelspitze (8) abgewandten Stirnseite den Widerlagerkörper (18) aufnimmt und dass der Widerla- gerkörper (18) an seiner ersten äußeren Stirnseite (20) mit zum Eingriff eines Werkzeuges zur Verdrehsicherung während der Montage bestimmten Ausformungen (21) versehen ist.1. Heavy-duty dowel with a sleeve-shaped dowel body axially penetrated by a threaded rod, with an expansion body arranged at the end in the area of the dowel tip and widening the dowel body, connected to the threaded rod, and with an abutment body connected to the threaded rod, which is rotated relative to the expanding body the threaded rod is axially displaceable in the dowel body, characterized in that the dowel body (7a) is designed as a one-piece tube (7) and receives the abutment body (18) on the end face facing away from the dowel tip (8) and that the abutment body (18) its first outer end face (20) is provided with formations (21) intended to engage a tool for securing against rotation during assembly.
2. Schwerlastdübel nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, d a s s die Ausformungen (21) von mindestens zwei im Abstand von der Gewindestange (11) im Widerlagerkörper (18) vorgesehenen Ausnehmungen gebildet sind.2. Heavy-duty dowel according to claim 1, d a d u r c h g e k e n n e e c h n e t, d a s s the formings (21) are formed by at least two recesses provided at a distance from the threaded rod (11) in the abutment body (18).
3. Schwerlastdübel nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t, d a s s die Ausnehmungen von Sacklochbohrungen gebildet sind.3. Heavy-duty dowel according to claim 2, d a d u r c h g e k e n n z e i c h n e t, that the recesses of blind holes are formed.
4. Schwerlastdübel nach Anspruch 1 oder einem der folgenden, d a d u r c h g e k e n n z e i c h n e t, d a s s der Widerlagerkörper (18) rotationssymmetrisch ausgebildet und zumindest teilweise mit einem Außendurchmesser versehen ist, der dem Innendurchmesser des Rohres (7) entspricht.4. Heavy duty dowel according to claim 1 or one of the following, d a d u r c h g e k e n n z e i c h n e t, that the abutment body (18) is rotationally symmetrical and at least partially provided with an outer diameter which corresponds to the inner diameter of the tube (7).
5. Schwerlastdübel nach Anspruch 4, d a d u r c h g e k e n n z e i c h n e t, d a s s sich an den Bereich des Außendurchmessers ein vorstehender, der Wandstärke (23 des Rohres (7) angepasster Kragen (22) anschließt.5. Heavy duty dowel according to claim 4, characterized in that a protruding, in the area of the outer diameter adjusts the wall thickness (23 of the tube (7) adapted collar (22).
6. Schwerlastdübel nach Anspruch 4, d a d u r c h g e k e n n z e i c h n e t, d a s s sich an den Bereich des Außendurchmessers ein sich verjüngender Konus (24) anschließt.6. Heavy-duty dowel according to claim 4, d a d u r c h g e k e n n z e i c h n e t that a tapered cone (24) adjoins the area of the outer diameter.
7. Schwerlastdübel nach Anspruch 4, d a d u r c h g e k e n n z e i c h n e t, d a s s der Widerlagerkörper (18) in seiner axialen Erstreckung auf einem ersten Teil (25) zylindrisch mit einem dem Innendurchmesser des Rohres (7) angepassten Außendurchmesser, auf einem zweiten Teil (26) mit einem zylindrischen Kragen (22) mit einem dem Außendurchmesser des Rohres (7) angepassten Außendurchmesser und auf einem dritten Teil (27) mit einem Konus (24) versehen ist, dessen kleinster Durchmesser dem Rohr-Innendurchmesser und dessen größter Durchmesser dem Rohr-Außendurchmesser angepasst ist.7. Heavy-duty dowel according to claim 4, characterized in that the abutment body (18) in its axial extent on a first part (25) cylindrical with an inner diameter of the tube (7) adapted outer diameter, on a second part (26) with a cylindrical collar (22) with an outer diameter adapted to the outer diameter of the tube (7) and on a third part (27) with a cone (24), the smallest diameter of which is adapted to the inner tube diameter and the largest diameter of which is the outer tube diameter.
8. Schwer lastdübel nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t, d a s s der Widerlagerkörper (18) an seiner zweiten Stirnseite (28) mit zum Eingriff eines Werkzeuges zur Verdrehsicherung wäh- rend der Montage bestimmten Ausformungen (21) versehen ist.8. Heavy-duty dowel according to claim 7, which also provides the abutment body (18) on its second end face (28) with formations (21) intended for engagement of a tool for securing against rotation during assembly.
9. Schwerlastdübel nach einem der Ansprüche 5 bis 8, d a d u r c h g e k e n n z e i c h n e t, d a s s der Widerlagerkörper (18) die Gewindestange (11) mit einer in Axialrichtung durchgehenden Bohrung (19) umschließt.9. Heavy-duty dowel according to one of claims 5 to 8, d a d u r c h g e k e n n z e i c h n e t, d a s s the abutment body (18) encloses the threaded rod (11) with a through hole in the axial direction (19).
10. Schwerlastdübel nach Anspruch 9, d a d u r c h g e k e n n z e i c h n e t, d a s s die Bohrung (19) zentrisch angeordnet ist.10. Heavy-duty dowel according to claim 9, d a d u r c h g e k e n n z e i c h n e t, that the bore (19) is arranged centrally.
11. Schwerlastdübel nach Anspruch 9, d a d u r c h g e k e n n z e i c h n e t, d a s s die Bohrung (19) parallel zur Achse des Widerlagerkörpers (18) exzentrisch angeordnet ist.11. Heavy duty dowel according to claim 9, characterized in that the bore (19) is arranged eccentrically parallel to the axis of the abutment body (18).
12. Schwerlastdübel nach Anspruch 10 oder 11,12. Heavy duty dowel according to claim 10 or 11,
5 d a d u r c h g e k e n n z e i c h n e t, d a s s die Bohrung (19) eine Gewindebohrung ist, die mit dem Gewinde (17) der Gewindestange (11) korrespondiert.5 d a d u r c h g e k e n n z e i c h n e t that the bore (19) is a threaded bore that corresponds to the thread (17) of the threaded rod (11).
13. Schwerlastdübel nach Anspruch 12,13. heavy-duty dowel according to claim 12,
L0 d a d u r c h g e k e n n z e i c h n e t, d a s s das Gewinde ein Linksgewinde ist.L0 d a d u r c h g e k e n n z e i c h n e t that the thread is a left-hand thread.
14. Schwerlastdübel nach Anspruch 1 oder einem der folgenden, d a d u r c h g e k e n n z e i c h n e , d a s s14. Heavy duty dowel according to claim 1 or one of the following, d a d u r c h g e k e n n z e i c h n e, d a s s
15 das einteilige Rohr (7) zumindest auf der der Dübelspitze (8) zugewandten Seite mit mindestens drei die Aufweitung begünstigenden mantellinienparallelen, regelmäßig über den Umfang des Rohres (7) verteilt angeordneten Schlitzen (30) versehen ist. 015 the one-piece tube (7) is provided, at least on the side facing the dowel tip (8), with at least three slots (30) which are parallel to the surface and parallel to the surface and which are distributed over the circumference of the tube (7). 0
15. Schwerlastdübel nach Anspruch 1 oder einem der folgenden, d a d u r c h g e k e n n z e i c h n e t, d a s s das einteilige Rohr (7) auf der der Dübelspitze (8) abgewandten Seite mit zwei mantellinienparallelen, unsymmet- 5 risch über den Umfang des Rohres (7) verteilt angeordneten Schlitz;en (29) versehen ist.15. Heavy-duty dowel according to claim 1 or one of the following, characterized in that the one-piece tube (7) on the side facing away from the dowel tip (8) with two circumferentially parallel, asymmetrically arranged slot 5 distributed over the circumference of the tube (7) (29) is provided.
16. Schwer lastdübel nach Anspruch 1 oder einem der folgenden, d a d u r c h g e k e n n z e i c h n e t, d a s s 0 dass das einteilige Rohr (7) auf der der Dübelspitze (8) abgewandten Seite mit mehreren nur etwa über den halben Umfang des Rohres verteilten Schlitzen ausgestattet ist.16. Heavy-duty dowel according to claim 1 or one of the following, d a d u r c h g e k e n n z e i c h n e t, d a s s 0 that the one-piece tube (7) on the side facing away from the dowel tip (8) is equipped with a plurality of slots distributed only approximately over half the circumference of the tube.
17. Schwerlastdübel nach Anspruch 1 oder einem der folgenden, 5 d a d u r c h g e k e n n z e i c h n e t, d a s s dass die Gewindestange (11) mit zwei entgegengesetzt verlaufenden Gewinden (14, 17) (Rechts-/Links-Gewinde) versehen ist, von denen eines je einer der Stirnseiten des einteiligen Rohres (7) zugeordnet ist.17. Heavy-duty dowel according to claim 1 or one of the following, 5 characterized in that the threaded rod (11) with two oppositely running threads (14, 17) (right / left thread) , one of which is assigned to one of the end faces of the one-piece tube (7).
18. Schwerlastdübel nach Anspruch 12, d a d u r c h g e k e n n z e i c h n e t, d a s s die Gewindestange (11) am freien Ende (16) ihrer der Dübelspitze (8) abgewandten Seite mit zum Eingriff eines Werkzeuges zum drehmomentenschlüssigen Verdrehen während der Montage bestimmten Ausformungen ausgestattet ist.18. Heavy-duty dowel according to claim 12, where the threaded rod (11) is equipped at the free end (16) of its side facing away from the dowel tip (8) with formations intended for engagement of a tool for torque-locking twisting during assembly.
19. Schwer lastdübel nach einem der Ansprüche 1 bis 18, d a d u r c h g e k e n n z e i c h n e t, d a s s das einteilige Rohr (7) mantelaußenseitig zumindest teilweise mit einer aufgerauten Oberfläche versehen ist.19. Heavy load dowel according to one of claims 1 to 18, d a d u r c h g e k e n n z e i c h n e t, that the one-piece tube (7) is at least partially provided on the outside of the shell with a roughened surface.
20. Schwerlastdübel nach einem der Ansprüche 1 bis 19, d a d u r c h g e k e n n z e i c h n e t, d a s s das Rohr (7), der Spreizkörper (12), der Widerlagerkörper (18) und die Gewindestange (11) aus einem korrosionsbestän- digen Material bestehen.20. Heavy-duty dowel according to one of claims 1 to 19, d a d u r c h g e k e n n z e i c h n e t, the pipe (7), the expansion body (12), the abutment body (18) and the threaded rod (11) consist of a corrosion-resistant material.
21. Schwerlastdübel nach Anspruch 20, d a du r c h g e k e n n z e i c h n e t, d a s s als korrosionsbeständiges Material ein nichtrostender, hochfester Stahl vorgesehen ist. 21. Heavy-duty dowel according to claim 20, because of which a non-rusting, high-strength steel is provided as the corrosion-resistant material.
EP03735316A 2002-05-24 2003-05-21 Heavy duty dowel Expired - Lifetime EP1507982B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200330187T SI1507982T1 (en) 2002-05-24 2003-05-21 Heavy duty dowel

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10224144 2002-05-24
DE10224144 2002-05-24
DE10233287 2002-07-18
DE2002133287 DE10233287A1 (en) 2002-07-18 2002-07-18 Heavy duty dowel comprises a one-piece tube that receives an abutment body provided with recesses on its outer front side which are used to engage a tool to prevent twisting during assembly
PCT/DE2003/001690 WO2003100269A1 (en) 2002-05-24 2003-05-21 Heavy duty dowel

Publications (2)

Publication Number Publication Date
EP1507982A1 true EP1507982A1 (en) 2005-02-23
EP1507982B1 EP1507982B1 (en) 2005-12-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03735316A Expired - Lifetime EP1507982B1 (en) 2002-05-24 2003-05-21 Heavy duty dowel

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Country Link
EP (1) EP1507982B1 (en)
AT (1) ATE312292T1 (en)
DE (1) DE50301870D1 (en)
DK (1) DK1507982T3 (en)
ES (1) ES2256751T3 (en)
WO (1) WO2003100269A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010063684A1 (en) * 2010-12-21 2012-06-21 Hilti Aktiengesellschaft Fixing anchors, especially for mineral substrates and concrete
DE202014005249U1 (en) 2014-06-27 2014-07-23 Markus Rensburg expansion anchor
DE102014009587A1 (en) 2014-06-27 2015-12-31 Markus Rensburg expansion anchor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1417209A (en) * 1921-03-09 1922-05-23 Henry B Newhall Expansion bolt
DE2046341A1 (en) * 1970-09-19 1972-04-20 Brueckl Technik Ges F Tech Erz Expansion dowel
US4020735A (en) * 1972-11-01 1977-05-03 Herbacks Industrikonsult Expansion bolt
US4027572A (en) * 1974-05-13 1977-06-07 Burge William G Theft-prevention screw fastenings
DE2925603A1 (en) * 1979-06-25 1981-01-29 Maechtle Werkzeugfab Fritz Anchor bolt with tubular expansion sleeve - includes flexible seal at entry to anchor location hole
LU84408A1 (en) * 1982-10-06 1984-05-10 Arbed FASTENING DEVICE
US5161916A (en) * 1991-06-03 1992-11-10 White Claude C Self-seating expansion anchor
DE4445154A1 (en) * 1994-12-17 1996-06-20 Fischer Artur Werke Gmbh Process for producing an expansion anchor made of corrosion-resistant steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03100269A1 *

Also Published As

Publication number Publication date
DK1507982T3 (en) 2006-04-18
DE50301870D1 (en) 2006-01-12
WO2003100269A1 (en) 2003-12-04
ES2256751T3 (en) 2006-07-16
ATE312292T1 (en) 2005-12-15
EP1507982B1 (en) 2005-12-07

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